NEET2015Physics-Thermodynamics
NEET 2015 Physics First Law of Thermodynamics MCQ Question
Type: MCQ-conceptual-Medium-Class 11
One mole of an ideal diatomic gas undergoes a transition from A to B along a path AB as shown in the figure. The change in internal energy of the gas during the transition is
A
20 kJ
B
-20 kJ
C
20 J
D
-12 kJ
Correct Answer
Option A
Detailed Explanation
For an ideal gas, the change in internal energy is given by . The process is isochoric, so .
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